This was no senior prank - quite the opposite. The student, Emma Sulkowitz, has been carrying the mattress around campus for six months.

The coed claims she was raped by a student at the university. He says he's innocent. A disciplinary committee cleared him and he was never charged by police. In protest, Sulkowitz vowed to carry her mattress as a reminder to everyone what she says she endured.

"I will be carrying this dorm room mattress with me everywhere I go for as long as I attend the same school as my rapist," Sulkowitz said.

She fulfilled that promise when she carried the mattress onstage at graduation. The student she accused, Paul Nungesser, was also there.